Detectives in Hardin County are investigating a case of child rape they said was the worst case they've ever seen.

"It's awful to know that somebody in your neighborhood could be doing something horrible to somebody, you know?" said neighbor Ron Harness.

Right across the street from Harness' home used to be a parked RV where Livingston and Tinsley were rooming together while fixing a trailer on the property.

It's also where police said the two raped and sodomized an 8-year-old girl repeatedly for most of July.

"It's definitely one of those kind of shakes your foundation of what you believe in people out there when you run across things like this," said Detective Rex Allaman with the Hardin County Sheriff's Office.

Setting aside the graphic details of how police said the abuse happened, Allaman considers other aspects of this case especially alarming, including the fact that deputies believe the young victim's relative, Camilla Clark, was the one who sent the girl to stay with the men in the first place.

"Mr. Livingston had off-and-on some kind of custody arrangement, not sure exactly if it was informal or formal, of the 8-year-old for approximately the past five years or so," said Allaman.

Police said Livingston is not related to the victim.

They also said Clark admitted knowing the child was sexually abused a year and a half ago but chose to keep it quiet to protect the other suspects. Only this time, neighbors caught on to what was going on, and told police, authorities said.

"The neighbor related the information that their children had been told by this girl, that she had been abused sexually," said Allaman.

The victim was taken into custody by Child Protective Services, and neighbors are left wondering how abuse so disturbing could have gone by undetected so close to home.

"I have grandkids, a little girl, so that's hard for me to believe that someone 200 feet across the street could be doing something like that," said Harness.

Clark is the only one of the three suspects not arrested. The others are in the Hardin County Jail with bail set at $50,000.

Livingston and Tinsley are each charged with rape and sodomy. Livingston faces additional charges of possessing drugs. Clark was charged with criminal abuse.